Sentry: panic.go:783: runtime error: index out of range [2] with length 1 (1) attached stack trace -- stack trace: | runtime.gopanic | GOROOT/src/runtime/panic.go:783 | runtime.goPanicIndex ...

This issue was auto filed by Sentry. It represents a crash or reported error on a live cluster with telemetry enabled.

Sentry Link: [https://cockroach-labs.sentry.io/issues/7474870599/?referrer=webhooks_plugin](https://cockroach-labs.sentry.io/issues/7474870599/?referrer=webhooks_plugin)

Panic Message:

```
panic.go:783: runtime error: index out of range [2] with length 1
(1) attached stack trace
-- stack trace:
| runtime.gopanic
| GOROOT/src/runtime/panic.go:783
| runtime.goPanicIndex
| GOROOT/src/runtime/panic.go:115
| github.com/shirou/gopsutil/v3/net.parseNetstatLine
| external/com_github_shirou_gopsutil_v3/net/net_darwin.go:37
| github.com/shirou/gopsutil/v3/net.parseNetstatOutput
| external/com_github_shirou_gopsutil_v3/net/net_darwin.go:119
| github.com/shirou/gopsutil/v3/net.IOCountersWithContext
| external/com_github_shirou_gopsutil_v3/net/net_darwin.go:191
| github.com/cockroachdb/cockroach/pkg/server/status.getSummedNetStats
| runtime.go:1350
| github.com/cockroachdb/cockroach/pkg/server/status.NewRuntimeStatSampler
| runtime.go:921
| github.com/cockroachdb/cockroach/pkg/server.NewServer
| server.go:437
| github.com/cockroachdb/cockroach/pkg/server.testServerFactoryImpl.New
| testserver.go:2563
| github.com/cockroachdb/cockroach/pkg/cli/democluster.(*transientCluster).createAndAddNode
| pkg/cli/democluster/demo_cluster.go:666
| github.com/cockroachdb/cockroach/pkg/cli/democluster.(*transientCluster).Start.func1
| pkg/cli/democluster/demo_cluster.go:270
| github.com/cockroachdb/cockroach/pkg/cli/democluster.(*transientCluster).Start
| pkg/cli/democluster/demo_cluster.go:276
| github.com/cockroachdb/cockroach/pkg/cli.runDemoInternal
| demo.go:239
| github.com/cockroachdb/cockroach/pkg/cli.runDemo
| demo.go:191
| github.com/cockroachdb/cockroach/pkg/cli.init.5.func1
| demo.go:50
| github.com/cockroachdb/cockroach/pkg/cli.init.5.MaybeDecorateError.func2
| pkg/cli/clierrorplus/decorate_error.go:67
| github.com/spf13/cobra.(*Command).execute
| external/com_github_spf13_cobra/command.go:916
| github.com/spf13/cobra.(*Command).ExecuteC
| external/com_github_spf13_cobra/command.go:1044
| github.com/spf13/cobra.(*Command).Execute
| external/com_github_spf13_cobra/command.go:968
| github.com/cockroachdb/cockroach/pkg/cli.Run
| cli.go:301
| github.com/cockroachdb/cockroach/pkg/cli.doMain
| cli.go:140
| github.com/cockroachdb/cockroach/pkg/cli.Main
| cli.go:65
| main.main
| pkg/cmd/cockroach/main.go:21
| runtime.main
| GOROOT/src/runtime/proc.go:285
| runtime.goexit
| src/runtime/asm_arm64.s:1268
Wraps: (2) runtime error: index out of range [2] with length 1
Error types: (1) *withstack.withStack (2) runtime.boundsError
-- report composition:
runtime.boundsError
panic.go:783: *withstack.withStack (top exception)
```

Stacktrace (expand for inline code snippets):

[src/runtime/asm_arm64.s#L1267-L1269](src/runtime/asm_arm64.s#L1267-L1269)
[GOROOT/src/runtime/proc.go#L284-L286](GOROOT/src/runtime/proc.go#L284-L286)
[pkg/cmd/cockroach/main.go#L20-L22](pkg/cmd/cockroach/main.go#L20-L22)
[cli.go#L64-L66](cli.go#L64-L66)
[cli.go#L139-L141](cli.go#L139-L141)
[cli.go#L300-L302](cli.go#L300-L302)
[external/com_github_spf13_cobra/command.go#L967-L969](external/com_github_spf13_cobra/command.go#L967-L969)
[external/com_github_spf13_cobra/command.go#L1043-L1045](external/com_github_spf13_cobra/command.go#L1043-L1045)
[external/com_github_spf13_cobra/command.go#L915-L917](external/com_github_spf13_cobra/command.go#L915-L917)
[pkg/cli/clierrorplus/decorate_error.go#L66-L68](pkg/cli/clierrorplus/decorate_error.go#L66-L68)
[demo.go#L49-L51](demo.go#L49-L51)
[demo.go#L190-L192](demo.go#L190-L192)
[demo.go#L238-L240](demo.go#L238-L240)
[pkg/cli/democluster/demo_cluster.go#L275-L277](pkg/cli/democluster/demo_cluster.go#L275-L277)
[pkg/cli/democluster/demo_cluster.go#L269-L271](pkg/cli/democluster/demo_cluster.go#L269-L271)
[pkg/cli/democluster/demo_cluster.go#L665-L667](pkg/cli/democluster/demo_cluster.go#L665-L667)
[testserver.go#L2562-L2564](testserver.go#L2562-L2564)
[server.go#L436-L438](server.go#L436-L438)
[runtime.go#L920-L922](runtime.go#L920-L922)
[runtime.go#L1349-L1351](runtime.go#L1349-L1351)
[external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L190-L192](external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L190-L192)
[external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L118-L120](external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L118-L120)
[external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L36-L38](external/com_github_shirou_gopsutil_v3/net/net_darwin.go#L36-L38)
[GOROOT/src/runtime/panic.go#L114-L116](GOROOT/src/runtime/panic.go#L114-L116)
[GOROOT/src/runtime/panic.go#L782-L784](GOROOT/src/runtime/panic.go#L782-L784)

```
src/runtime/asm_arm64.s in runtime.goexit at line 1268
GOROOT/src/runtime/proc.go in runtime.main at line 285
pkg/cmd/cockroach/main.go in main.main at line 21
cli.go in pkg/cli.Main at line 65
cli.go in pkg/cli.doMain at line 140
cli.go in pkg/cli.Run at line 301
external/com_github_spf13_cobra/command.go in github.com/spf13/cobra.(*Command).Execute at line 968
external/com_github_spf13_cobra/command.go in github.com/spf13/cobra.(*Command).ExecuteC at line 1044
external/com_github_spf13_cobra/command.go in github.com/spf13/cobra.(*Command).execute at line 916
pkg/cli/clierrorplus/decorate_error.go in pkg/cli.init.5.MaybeDecorateError.func2 at line 67
demo.go in pkg/cli.init.5.func1 at line 50
demo.go in pkg/cli.runDemo at line 191
demo.go in pkg/cli.runDemoInternal at line 239
pkg/cli/democluster/demo_cluster.go in pkg/cli/democluster.(*transientCluster).Start at line 276
pkg/cli/democluster/demo_cluster.go in pkg/cli/democluster.(*transientCluster).Start.func1 at line 270
pkg/cli/democluster/demo_cluster.go in pkg/cli/democluster.(*transientCluster).createAndAddNode at line 666
testserver.go in pkg/server.testServerFactoryImpl.New at line 2563
server.go in pkg/server.NewServer at line 437
runtime.go in pkg/server/status.NewRuntimeStatSampler at line 921
runtime.go in pkg/server/status.getSummedNetStats at line 1350
external/com_github_shirou_gopsutil_v3/net/net_darwin.go in github.com/shirou/gopsutil/v3/net.IOCountersWithContext at line 191
external/com_github_shirou_gopsutil_v3/net/net_darwin.go in github.com/shirou/gopsutil/v3/net.parseNetstatOutput at line 119
external/com_github_shirou_gopsutil_v3/net/net_darwin.go in github.com/shirou/gopsutil/v3/net.parseNetstatLine at line 37
GOROOT/src/runtime/panic.go in runtime.goPanicIndex at line 115
GOROOT/src/runtime/panic.go in runtime.gopanic at line 783
```

### Tags

| Tag | Value |
| --- | --- |
| Command | demo |
| Environment | v26.1.3 |
| Go Version | go1.25.5 |
| Platform | darwin arm64 |
| Distribution | CCL |
| Cockroach Release | v26.1.3 |
| Cockroach SHA | ea8d70f63642a8cd69002a2baedc47fa077239cb |
| # of CPUs | 16 |
| # of Goroutines | 35 |

Jira issue: CRDB-63850